There are a number of different options when it comes to displaying public holidays on the calendar for specific countries. 

The countries which can be displayed include:

How to enable public holidays:

To enable these public holidays, go to: Profile -> Menu -> Localisation 

Here, you will see the ability to enable these options on the public calendar, as per the below screenshot.

How to add public holidays for countries which aren't included in Natural HR: 

If you want public holidays for an additional country to appear on the list please open a support ticket by contacting support@naturalhr.com and either send us the dates and names of the holidays or a link to an accurate, reliable and up to date page which lists the holidays and we will then add them as a country option.